Ok, thats good to know, I just asked because i know that a video sender we have is terribly affected by the microwave oven and wifi router.

Was worried that might happen.
So bought this:

It's a Foscam FI8918W wireless IP camera, and it cost €57 on ebay including shipping. Does infra-red at night (with inbuild illumination), pan, tilt, zoom and audio; and you can set it up so it can be watched on the internet (with usernames and passwords and different levels of control from passive watching to active control of the camera) for grandparents and godparents to get their babywatching fix. You can watch the video on your laptop from an ordinary webpage, and there are also apps for android and iphones and if you want a dedicated screen to watch it on and don't have anything you can use, well, there are cheap android tablets on ebay. It hooks into your wifi at home (and you can plug it in to a normal router as well if you have one).

It seems to be working fine; give me a fortnight and I'll tell you how well it works as a baby monitor (But for €60 compared to mothercare's €300-400 for a video baby monitor, it's got to be worth trying...)

It's working quite well for a video link for both parents and grandparents to PCs, iPads, iPhones and android phones both on the house wifi and outside on the 3G network, but we've discovered we're too fond of Sparks 2.0 to put him in the nursery just yet and since I mounted the webcam on the cot that's our primary changing platform, I've turned it off for now. But I'm not planning on buying a replacement!

they are a very good camera and also work very well as a general security camera and can be used outside as long as they are out of direct contact with the elements, such as hanging upside down from your eaves etc.

you can even set them up to upload to an FTP site on the net for extra security if you thought you might need it.